English

Explicit Hochschild Cocycles for Gentle Algebras

Rings and Algebras 2023-08-21 v1 Representation Theory

Abstract

Hochschild cohomology is crucial for understanding deformation theory. In arXiv:2304.10223, we have computed the Hochschild cohomology for gentle algebras of punctured surfaces. The construction of that paper is rather implicit and fails if the punctured surface has only a single puncture. In the present note, we supplement the earlier method by providing an explicit construction of Hochschild cocycles which also succeeds in the case of a single puncture.

Keywords

Cite

@article{arxiv.2308.09533,
  title  = {Explicit Hochschild Cocycles for Gentle Algebras},
  author = {Jasper van de Kreeke},
  journal= {arXiv preprint arXiv:2308.09533},
  year   = {2023}
}

Comments

31 pages, numerous illustrations

R2 v1 2026-06-28T11:58:44.770Z